A friend of mine lost his voice and due to his work he gets a lot of calls, this is causing him to make an effort to try to speak as loud as he can because people doesn't seem to care that he can't talk properly. How can he deal with this issue without looking unprofessional?
Is he someone who needs to frequently take phone calls from customers, or are these just coworkers wanting to talk to him about day-to-day work? Just coworkers, but from other departments with requirements for him to do.
Is his voice loss a temporary condition? Yes, I guess it will last a couple of days
To further understanding his job doesn't consist in taking calls (like working in a call center). But he usually gets a lot of calls during the day
My friend talked to his boss and he recommended him to see a doctor, as for the phone calls he is still receiving them but is trying to keep them as short as possible, leaving the details for written channels. He will go to the doctor if the problem doesn't go away